Operation Of The Delayed Interrupt Module - Fujitsu FR60 Hardware Manual

CHAPTER 10 DELAYED INTERUPT MODULE

10.3 Operation of the Delayed Interrupt Module

A delayed interrupt refers to an interrupt generated for switching tasks. Use this
function to allow a software program to generate an interrupt request for the CPU or to
clear an interrupt request.
■ Interrupt Number
A delayed interrupt is assigned to the interrupt source corresponding to the largest interrupt
number.
On the MB91301 series, a delayed interrupt is assigned to interrupt number 63 (3F
■ DLYI Bit of DICR
Write "1" to this bit to generate a delayed interrupt source. Write "0" to it to clear a delayed
interrupt source.
This bit is the same as the interrupt source flag for a normal interrupt. Therefore, clear this bit
and switch tasks in the interrupt routine.
328
).
H